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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gdl2/trunk@15102 72102866-910b-0410-8b05-ffd578937521
107 lines
2.9 KiB
Objective-C
107 lines
2.9 KiB
Objective-C
/*
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EOExpressionArray.h
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Copyright (C) 1996 Free Software Foundation, Inc.
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Author: Ovidiu Predescu <ovidiu@bx.logicnet.ro>
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Date: September 1996
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This file is part of the GNUstep Database Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; see the file COPYING.LIB.
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If not, write to the Free Software Foundation,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __EOExpressionArray_h__
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#define __EOExpressionArray_h__
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#import <Foundation/NSString.h>
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#include <gnustep/base/GCObject.h>
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@class EOAttribute;
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@class EOEntity;
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@class EOExpressionArray;
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@protocol EOExpressionContext <NSObject>
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- (NSString *)expressionValueForAttribute: (EOAttribute *)anAttribute;
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- (NSString *)expressionValueForAttributePath: (NSArray *)path;
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@end
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@interface EOExpressionArray : GCMutableArray
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{
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NSString *_prefix;
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NSString *_infix;
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NSString *_suffix;
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// NSString *_definition; it's rebuilt
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EOAttribute *_realAttribute;
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struct
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{
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unsigned int isFlattened:1; //TODO Why ?
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} _flags;
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}
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+ (EOExpressionArray*)expressionArray;
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+ (EOExpressionArray*)expressionArrayWithPrefix: (NSString *)prefix
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infix: (NSString *)infix
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suffix: (NSString *)suffix;
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/* Initializing instances */
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- initWithPrefix: (NSString *)prefix
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infix: (NSString *)infix
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suffix: (NSString *)suffix;
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- (NSString *)prefix;
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- (NSString *)infix;
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- (NSString *)suffix;
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- (NSString *)definition;
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- (BOOL)isFlattened;
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- (EOAttribute *)realAttribute;
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/* Accessing the components */
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- (void)setPrefix: (NSString*)prefix;
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- (void)setInfix: (NSString*)infix;
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- (void)setSuffix: (NSString*)suffix;
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/* Checking contents */
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- (BOOL)referencesObject: (id)anObject;
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- (NSString *)expressionValueForContext: (id<EOExpressionContext>)ctx;
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+ (EOExpressionArray *)parseExpression: (NSString *)expression
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entity: (EOEntity *)entity
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replacePropertyReferences: (BOOL)flag;
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- (NSString*)valueForSQLExpression: (EOSQLExpression *)sqlExpression;
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@end /* EOExpressionArray */
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@interface NSObject (EOExpression)
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- (NSString*)expressionValueForContext: (id<EOExpressionContext>)context;
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@end
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@interface NSString (EOAttributeTypeCheck)
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- (BOOL)isNameOfARelationshipPath;
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@end
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#endif /* __EOExpressionArray_h__ */
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